It is the second time in a month that customers have become gridlocked in the car park, with people forced to stay for four hours at the opening weekend.

Customers resorted to blasting their car horns and trying to edge around each other in the car park confusion with reports that angry motorists even started yelling at each other as they tried to get out.

Shoppers also took to social media to vent their frustration at being stuck, with Linda Gale writing: "what do I do with the frozen meatballs in my car as I've been stuck in the car park top level for an hour and a half??"

Another shopper took to Twitter, claiming they had to wait for three hours.

He said: "had a 3hr wait at IKEA reading..my first ever visit.Not ideal. But atleast I wasn't on the 3rd floor of the carpark in the rain."